Sand roasting machine is also named as yellow sand roasting machine, and it is a sort of rotary dryer that can handle a large amount of materials. Owing to the reliable operation, flexible manipulation, large capacity, excellent adaptation of the machine. The sand roasting machine is widely used in construction industry, metallurgical industry, mining industry, food industry etc.The yellow sand roasting machine is a kind of rotary dryer, generally adapted to granular materials, semi-arid sticky paste materials or meterials with higher water content. Especially for roasting sand, this sand roasting dryer can operate more excellent. Sand rotary dryer has the advantage of large capacity, wide range of applications, lower flow resistance, easy operation, and allowing fluctuation on processing. The working principle of Sand Roasting Machine: 1.The mineral waste residue are conveyed to silo by belt conveyor or bucket elevator ,and transport to the feed end by the feeder of silo.(The inclination of the feeding pipeline should be exceed the natural inclination of materials, so that to facilite ore to flow into rotary dryer smoothly).The rotating cylinder of the machine is slighly inclined to the horizon. 2.To feed the material from the higher end and the heat carrier enter from the lower end, such produce adverse contact between them. Sometimes,they can be fed to the cylinder together. As the cylinder running,ores carried to the lower side by the gravity. 3.In the process of moving fruward ,the wet raw material being roasted by the heat directly or indirectly. 4.The finished items turn out via belt conveyor or spiral conveyor.There is shoveling plate installed in the tank with function of shoveling the materials up and down,to enlarge the contact area between airflow and materials and to enhance the efficiency. Henan Kefan Mining Machinery Co.,Ltd. is a professional mining machinery manufacturer.Our Company provide jaw crusher, brick making machine ,mining machinery,Briquetting Machine, cone crusher,vibrating screen,conveyor,Stone Crusher,hammer crusher,roller crusher,circular vibrating screen,grinding mill,Ball Mill,cement equipment,belt conveyer,vibrating feeder,rotary dryer,Crusher,cutting machine,dry machine,cone crusher,magnetic separator,casting machine, etc.

The vertical roasting machine adopts vertical equipment and steel structure housing, and the lining is equipped with heat preservation material to keep warm. In the inner of the kiln, and multilayer high temperature castings have been used and overlapped. In the higher, middle and lower parts, all relevant components have several groups of vibrate, closure, temperature control and intelligent control systems. Water vapor and smoke collected and removed by the whirlwind dust collector installed in the draught fan. The vertical roasting machine uses rotary dryer's drying characteristics of great air-delivery and gravity principle, the development design, industrialization test, product generation upgrades, and successfully puts products into operation of massive mold several stages. The key technology of vertical roasting machine is to control the flow rate and residence time of the material in every area of the rotary dryer, making the hot flue gas fully convected, radiated and heat conducted with the material which thus can be scattered in the rotary dryer as far as possible to enlarge the contact area between the hot smoke and the material. At the same time, material drying parameter optimization microcomputer software technology has been adopted to proceed online detection to the material moisture and gas temperature in the preheating zone, stoving zone and drying zone, and adjust the system parameters on line such as heating ability, lead-wind quantity, secondary hot wind distribution, heat supply capacity, material closure capacity and retention time, etc., realizing dynamic optimization balance of the system and improving the heat utilization rate. Henan Kefan Mining Machinery Co.,Ltd. is a professional mining machinery manufacturer.Our Company provide jaw crusher, brick making machine ,mining machinery,Briquetting Machine, cone crusher,vibrating screen,conveyor,Stone Crusher,hammer crusher,roller crusher,circular vibrating screen,grinding mill,Ball Mill,cement equipment,belt conveyer,vibrating feeder,rotary dryer,Crusher,cutting machine,dry machine,cone crusher,magnetic separator,casting machine, etc.

Flyash rotary dryer is novel and leading in structure and technology respectively, and generally employed for the drying of flyash ,clay ,slag ,coal ,ore in the construction and chemical industries.The main body of flyash dryer is constituted of three concentric circles which are of different diameter, and horizontal rolling by the belts.The fuel ,gas and coal airheater is installed in the the feed inlet, the discharge end is fed with dust cover and automatic baiting device. Via pipeline, the dust cove is connected with dust remover, and the dust catching machine, feeding equipment, conveyor can specilally designed according to customers' requirements. Flyash rotary dryer is designed according to the features of flyash which the moisture is higher than other materials; the proportion is lower than other materials, big flow ability in the drying process.The working process of the telescope-feed 3 drum dryer as follows:The flyash is conveyed to the drying machine through feed inlet ,then lifted from the inner tube to themiddle tube, finally to the outer tube ,and finished in the tube of discharge end. Characteristics of Flyash Roasting Machine: 1.The moisture of finished products can be controlled under 0.5%,is the indispensable equipment for flyash and ore powder production line. 2. Excellent heat preservation ,the thermal efficiency can reach above 80%,increased by 45%(The heat efficiency of traditional dryers is merely confined to 35% ). 3. Coal ,Gas ,oil all can act as fuel , granular and powder materials that smaller than 20mm are also applied to the drying machine. 4. Compared with single drum roasting machine, It's land consumption and electricity consumption were economized 50% and 60% respectively. 5. Adopted alloy steel plate with abrasive resistance 4 times than common steel plate. 6. The eventually moisture indexes can be adjusted on the ground of consumers' needs. 7. The rotary dryer equipment is of long life. 8. No need for wheel gear in large and small size ,only pull wheel is required. Henan Kefan Mining Machinery Co.,Ltd. is a professional mining machinery manufacturer.Our Company provide jaw crusher, brick making machine ,mining machinery,Briquetting Machine, cone crusher,vibrating screen,conveyor,Stone Crusher,hammer crusher,roller crusher,circular vibrating screen,grinding mill,Ball Mill,cement equipment,belt conveyer,vibrating feeder,rotary dryer,Crusher,cutting machine,dry machine,cone crusher,magnetic separator,casting machine, etc.

Bag-type dust remover in the rotary dryer series is composed by ash hopper, exhaust duct, filter room, clean room, the filter bag and framework(bag), manual into cage bone wind valve, pneumatic butterfly valve, pulse soot cleaning institutions,etc. Bag filter working principle: Bag-type dust remover is based on filtering principles filter brand-newly type dust removal equipment, using organic fiber or inorganic fibers of the dust filter cloth will gas filtered out. Dust removal process: by the dongshen gas into the intake from central box ,inside the bag dust entering in, be blocked filter bag outside surface. Purify air into the bag, again by upper case on the bag ,finally by entering exhaust. Advantages of Bag filter: (1) Discharge of dust concentration is low; general under 50mg/N.M.3, can even less than 20mg/N.M.3. for the coal ash ground and high, electricity precipitator to achieve such a low concentration is very difficult, or to increase more investment(namely a conventional 3 electric field to expand to 4 to 6 electric field). (2)Exhaust from dust concentration than resistance, density and particle size effect. Boiler load changes, the quantity fluctuation on the bag dust extractions export emitting concentration has little impact. (3)General bag dust extractions uses separate room structure and leaves headroom in the design. Precipitator can be rotated overhaul ,without affecting rotation overhaul boiler operation.Therefore, the influence of boiler equipment availability to almost zero. (4) Because Bag filter extractions capture more effective, it fine dust to remove the fly ash contained rare metal particles ash. But to P.M.10 readings - which were taken, PM2.5 subtle, reduce dust can effectively remove to those around health harm. (5)The structure and maintance of bag filter is simple. (6)As the key problem of bag filter- material, now also has breakthrough ,using life than 2 years, actually can reach 4-6 years of achievements. (7)In dry or half rotary dryer desulphurization system, further reduce the role of SO2. Henan Kefan Mining Machinery Co.,Ltd. is a professional mining machinery manufacturer.Our Company provide jaw crusher, brick making machine ,mining machinery,Briquetting Machine, cone crusher,vibrating screen,conveyor,Stone Crusher,hammer crusher,roller crusher,circular vibrating screen,grinding mill,Ball Mill,cement equipment,belt conveyer,vibrating feeder,rotary dryer,Crusher,cutting machine,dry machine,cone crusher,magnetic separator,casting machine, etc.

Rotary Dryer(Drying Machine) The rotary dryer is a type of industrial dryer employed to reduce or minimize the liquid moisture content of the material handling by bringing it into direct contact with a heated gas. Rotary dryer is used for drying materials with a certain humidity or granularity in milling of ores, building materials, metallurgy and chemical industry.Rotary drying machine has a strong adaptability of materials and it can dry various materials. The operation is very simple and reliable. For this reason, rotary dryer is widely used in metallurgy, building materials food, light industry, chemical industry, coal,medicine and mining industries. The rotary dryer adopts direct flow type of heating with heat soure from firing unit. The material to be dried is pushed back immindiately by spiral board when enters the shell from feeding tank and feeding chute. Because Rotary dryer is installed in slope, material flows to the back end under gravity and rotation force, meanwhile, it is lifted by board repeatedly and thrown down accordingly, which make the material form even curtain, and exchange heat sufficiently with inner the heat flow. In the end, water in the material is dried by repeatedly scattering. Rotary dryer Working Principle: Materials are sent to hopper of rotary dryer by belt conveyor or bucket elevator.The barrel is installed with slope to horizontal line. Materials enter the barrel from the higher side, and hot air enters the barrel from the according to users' needs. Henan Kefan Mining Machinery Co.,Ltd. is a professional mining machinery manufacturer.Our Company provide jaw crusher, brick making machine ,mining machinery,Briquetting Machine, cone crusher,vibrating screen,conveyor,Stone Crusher,hammer crusher,roller crusher,circular vibrating screen,grinding mill,Ball Mill,cement equipment,belt conveyer,vibrating feeder,rotary dryer,Crusher,cutting machine,dry machine,cone crusher,magnetic separator,casting machine, etc.